emacs21 TCP connection failed after update.

[Takanori Watanabe]

Hi, after I updated the system, I try to use navi2ch, a client
for WWW based BBS system written in emacs-lisp, and found
It often failes to connect to the server with EALREADY.

Then I investigate the problem, I found 
the code(open-network-stream function @emacs21.3/src/process.c)
assumes that connection attempt is aborted when  a program 
got any signal during connect(2) is issued and the 
next attempt to connect(2) fails with EALREADY after a
connect(2) is interrupted. 
What shall we do?